package com.base.common.util;

import android.content.Context;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.os.Build;

import java.util.UUID;

public final class SystemUtil {

    /**
     * 获取 Android 机器码
     * @return  返回机器码
     */
    public static String getMachineCode() {
        String serial = null;

        String m_szDevIDShort = "35" +
                Build.BOARD.length()%10+ Build.BRAND.length()%10 +

                Build.CPU_ABI.length()%10 + Build.DEVICE.length()%10 +

                Build.DISPLAY.length()%10 + Build.HOST.length()%10 +

                Build.ID.length()%10 + Build.MANUFACTURER.length()%10 +

                Build.MODEL.length()%10 + Build.PRODUCT.length()%10 +

                Build.TAGS.length()%10 + Build.TYPE.length()%10 +

                Build.USER.length()%10 ; //13 位

        try {
            serial = Build.class.getField("SERIAL").get(null).toString();
            //API>=9 使用serial号
            return new UUID(m_szDevIDShort.hashCode(), serial.hashCode()).toString();
        } catch (Exception exception) {
            //serial需要一个初始化
            serial = "serial"; // 随便一个初始化
        }
        //使用硬件信息拼凑出来的15位号码
        return new UUID(m_szDevIDShort.hashCode(), serial.hashCode()).toString();
    }

    //版本名
    public static String getVersionName(Context context) {
        return getPackageInfo(context).versionName;
    }

    //版本号
    public static int getVersionCode(Context context) {
        return getPackageInfo(context).versionCode;
    }

    private static PackageInfo getPackageInfo(Context context) {
        PackageInfo pi = null;

        try {
            PackageManager pm = context.getPackageManager();
            pi = pm.getPackageInfo(context.getPackageName(),
                    PackageManager.GET_CONFIGURATIONS);

            return pi;
        } catch (Exception e) {
            e.printStackTrace();
        }

        return pi;
    }

}
